U Listing of Minerals

U Listing of Minerals
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U Index of Mineral Species

This alphabetical listing of U minerals include synonyms of accepted mineral names, pronunciation of that name, name origins, and locality information. Visit our expanded selection of mineral pictures.

Uchucchacuaite  Say UCHUCCHACUAITE Mineral Image for Uchucchacuaite Mindat locations   AgPb3MnSb5S12 NAME ORIGIN: Named for the locality. LOCALITY: Uchuc-Chacua deposit, Cajatambo Province, Peru.
Uedaite-(Ce) !   Mindat locations   Mn++CeAl2Fe++(Si2O7)(SiO4)O(OH) NAME ORIGIN: Named for Tateo Ueda (1912-2000), who was the first to solve the crystal structure of allanite.
Uhligite ?  Say UHLIGITE Mineral Image for Uhligite Mindat locations   Ca3(Ti,Al,Zr)9O20 NAME ORIGIN: Named for Alfred Louis Johannes Uhlig (1883-1919), German geologist, leader of the African expedition in which the material was first collected.
Uhligite - perovskite or zirkelite (?)  (see Perovskite ) See Also: GOOGLE, Athena, MinDAT, MinMax
Uhligite - perovskite or zirkelite (?)  (see Zirkelite ) See Also: GOOGLE, Athena, MinDAT, MinMax
Uklonskovite  Say UKLONSKOVITE Mineral Image for Uklonskovite Mindat locations   NaMg(SO4)F•2(H2O) NAME ORIGIN: Named for Aleksandr Sergeevich Uklonskii (1882-1972), mineralogist, Tashkent University, Tashkent, Uzbekistan, who studied central Asian mineral deposits.
Ulexite  Say ULEXITE Mineral Image for Ulexite Mindat locations   NaCaB5O6(OH)6•5(H2O) NAME ORIGIN: Named after the German chemist, George Ludwig Ulex (1811-1883).
Ullmannite  Say ULLMANNITE Java Crystal form for Ullmannite Mindat locations   NiSbS NAME ORIGIN: Named after the German chemist and mineralogist, J. Ch. Ullmann (1771-1821).
Ulrichite  Say ULRICHITE Mineral Image for Ulrichite Mindat locations   CaCu(UO2)(PO4)2•4(H2O) NAME ORIGIN: Named for G.H.F. Ulrich.
Ultamarine pigment *  (see Lazurite ) See Also: GOOGLE, Athena, MinDAT, MinMax
Ulvite *  (see Ulvospinel ) See Also: GOOGLE, Athena, MinDAT, MinMax
Ulvospinel  Say ULVOSPINEL Mineral Image for Ulvospinel Mindat locations   TiFe++2O4 NAME ORIGIN: Named after the locality and the spinel group of minerals. LOCALITY: Sodra Ulvön island, Angermanland, Sweden
Umangite  Say UMANGITE Mineral Image for Umangite Mindat locations   Cu3Se2 NAME ORIGIN: Named after the locality. LOCALITY: Sierra de Umango, La Rioja province in Argentina.
Umbite  Say UMBITE Mindat locations   K2ZrSi3O9•(H2O) NAME ORIGIN: Named for Lake Umbozero, which separates the Khibiny massif from the Lovozero massif, Kola Peninsula, Russia.
Umbozerite  Say UMBOZERITE Mineral Image for Umbozerite Mindat locations   Na3Sr4ThSi8(O,OH)24 NAME ORIGIN: Named for the locality. LOCALITY: Umbozero (Lake Umba), Kola Peninsula, Russia.
Umohoite  Say UMOHOITE Mineral Image for Umohoite Mindat locations   [(UO2)MoO4]•H2O NAME ORIGIN: Named for the composition of U, Mo, H.
Ungarettiite  Say UNGARETTIITE Mineral Image for Ungarettiite Mindat locations   NaNa2(Mn++2Mn+++3)Si8O22O2 NAME ORIGIN: Named after Prof. Luciano Ungaretti (1942-), Universita de Pavia, Pavia, Italy.
Ungavaite !   Mindat locations   Pd4Sb3 NAME ORIGIN: Named for the locality. LOCALITY: Mesamax Northwest deposit, Ungava region, Québec, Canada
Ungemachite  Say UNGEMACHITE Mineral Image for Ungemachite Java Crystal form for Ungemachite Mindat locations   K3Na8Fe+++(SO4)6(NO3)2•6(H2O) NAME ORIGIN: Named for Henri-Leon Ungemach (1880-1936), Belgian crystallographer.
Ungursaite *   Mindat locations   NaCa5(Ta,Nb)24O65(OH) NAME ORIGIN: Named for the locality. LOCALITY: Ungursai, East Kazakhstan.
Upalite  Say UPALITE Mindat locations   Al(UO2)3(PO4)2O(OH)•7(H2O) NAME ORIGIN: Named for the Uranium, Phosphorus, and ALuminum in the composition.
Uralborite  Say URALBORITE Mindat locations   CaB2O2(OH)4 NAME ORIGIN: Named for the original locality in the URAL Mountains, Russia, and BORate in its composition. LOCALITY: Novofrolovskoye copper deposit, near Krasnoturinsk, Turinsk district, Northern Ural Mountains, Russia.
Uralolite  Say URALOLITE Mineral Image for Uralolite Mindat locations   Ca2Be4(PO4)3(OH)3•5(H2O) NAME ORIGIN: Named for the locality. LOCALITY: Boyevka, central Ural Mountains, Russia.
Uramarsite !   Mindat locations   (NH4,H3O)2(UO2)2(AsO4,PO4)2•6H2O NAME ORIGIN: Named for its composition of uranium, ammonium, and arsenic.
Uramphite  Say URAMPHITE Mineral Image for Uramphite Mindat locations   (NH4)(UO2)(PO4)•3(H2O) NAME ORIGIN: Named for the composition of (UR)anium and (AM)monium and (PH)osphate in the composition.
Urancalcarite  Say URANCALCARITE Mineral Image for Urancalcarite Mindat locations   Ca(UO2)3(CO3)(OH)6•3(H2O) NAME ORIGIN: Named for the composition.
Uraninite  Say URANINITE Mineral Image for Uraninite Java Crystal form for Uraninite Mindat locations   UO2 NAME ORIGIN: From its elemental composition containing uranium.
Uranmicrolite  Say URANMICROLITE Mindat locations   (U,Ca)2(Ta,Nb)2O6(OH) NAME ORIGIN: Named for uranium and as a member of the microlite group.
Uranocircite  Say URANOCIRCITE Mineral Image for Uranocircite Mindat locations   Ba(UO2)2(PO4)2•12(H2O) NAME ORIGIN: Named for the composition and from the Greek for "falcon" because it was discovered in Falkenstein, Germany.
Uranophane  Say URANOPHANE Mineral Image for Uranophane Mindat locations   Ca(UO2)2SiO3(OH)2•5(H2O) NAME ORIGIN: From uran and phanos - "to appear."
Uranophane-beta  Say URANOPHANE-BETA Mineral Image for Uranophane-beta Mindat locations   Ca[(UO2)SiO3(OH)]2•(H2O) NAME ORIGIN: Named as the polymorph of uranophane.
Uranopilite  Say URANOPILITE Mineral Image for Uranopilite Mindat locations   [(UO2)6(SO4)O2(OH)6(H2O)6]•8(H2O) NAME ORIGIN: Named for uranium and the Greek for "felt", alluding to the composition and habit.
Uranopolycrase  Say URANOPOLYCRASE Mineral Image for Uranopolycrase Mindat locations   (U,Y)(Ti,Nb,Ta)2O6 NAME ORIGIN: Named for its content or URANium and relation to polycrase.
Uranosilite  Say URANOSILITE Mindat locations   (U++++++O2)Si7O15 NAME ORIGIN: Named in allusion to the composition.
Uranospathite  Say URANOSPATHITE Mineral Image for Uranospathite Mindat locations   Al1-x[ ]x[(UO2)(PO4)]2(H2O)20+3xF1-3x NAME ORIGIN: Named for the composition and the Greek for "broad blade" in allusion to the crystal habit.
Uranosphaerite  Say URANOSPHAERITE Mineral Image for Uranosphaerite Mindat locations   Bi(UO2)O2(OH) NAME ORIGIN: Named for the compostition uranium and the Greek for sphere, in allusion to its globular forms.
Uranospinite  Say URANOSPINITE Mineral Image for Uranospinite Mindat locations   Ca(UO2)2(AsO4)2•10(H2O) NAME ORIGIN: Named for uranium and the Greek for "siskin," in allusion to its composition and color.
Uranotile *  (see Uranophane ) See Also: GOOGLE, Athena, MinDAT, MinMax
Uranotile-beta *  (see Uranophane-beta ) See Also: GOOGLE, Athena, MinDAT, MinMax
Uranotungstite  Say URANOTUNGSTITE Mindat locations   (Fe++,Ba,Pb)(UO2)2WO4(OH)4•12(H2O) NAME ORIGIN: Named for the composition.
Uranpyrochlore  Say URANPYROCHLORE Mineral Image for Uranpyrochlore Mindat locations   (U,Ca,Ce)2(Nb,Ta)2O6(OH,F) NAME ORIGIN: Named for its URANium content and membership in the pyrochlore group.
Urao *  (see Trona ) See Also: GOOGLE, Athena, MinDAT, MinMax
Urea  Say UREA Mindat locations   CO(NH2)2 NAME ORIGIN: From the Greek for urine, in which urea was first found.
Ureyite *  (see Kosmochlor ) See Also: GOOGLE, Athena, MinDAT, MinMax
Uricite  Say URICITE Mineral Image for Uricite Mindat locations   C5H4N4O3 NAME ORIGIN: For its composition, anhydrous uric acid.
Ursilite *   Mindat locations   (Mg,Ca)4[(UO2)4(OH)5/(Si2O5)5.5]•13(H2O) NAME ORIGIN: Named for the composition (U, Si).
Urusite *  (see Sideronatrite ) See Also: GOOGLE, Athena, MinDAT, MinMax
Urusovite !   Mineral Image for Urusovite Java Crystal form for Urusovite Mindat locations   Cu[AlAsO5] NAME ORIGIN: The name honors Vadim Sergeevich Urusov of Moscow State University, Russia.
Urvantsevite  Say URVANTSEVITE Mindat locations   Pd(Bi,Pb)2 NAME ORIGIN: Named for Nikolai N. Urvantsev (1893-1985), Russian geologist who discovered the Norilsk deposits.
Ushkovite  Say USHKOVITE Mineral Image for Ushkovite Mindat locations   MgFe+++2(PO4)2(OH)2•8(H2O) NAME ORIGIN: Named for Sergei L’vovich Ushkov (1880-1951), Russian naturalist, student of the Ilmen National Forest, Russia.
Usonite *  (see Uzonite ) See Also: GOOGLE, Athena, MinDAT, MinMax
Usovite  Say USOVITE Mindat locations   Ba2CaMgAl2F14 NAME ORIGIN: Named for Mikhail Antonovich Usov (1883-1939), Russian geologist.
Ussingite  Say USSINGITE Mineral Image for Ussingite Mindat locations   Na2AlSi3O8(OH) NAME ORIGIN: Named for Niels Viggo Ussing (1864-1911), Copenhagen, Denmark.
Ustarasite  Say USTARASITE Mindat locations   Pb(Bi,Sb)6S10 NAME ORIGIN: Named for the locality. LOCALITY: Ustarasaisk deposit, western Tian-Shan, Kazakhstan.
Utahite !  Say UTAHITE Mineral Image for Utahite Mindat locations   Cu5Zn3(Te++++++O4)4(OH)8•7(H2O) NAME ORIGIN: Named after its locality. LOCALITY: The Centennial Eureka mine, 1 mile southeast of Eureka, Tintic District, Juab County, Utah, USA.
Utahite *  (see Jarosite ) See Also: GOOGLE, Athena, MinDAT, MinMax
Utahlite *  (see Variscite ) See Also: GOOGLE, Athena, MinDAT, MinMax
Uvanite  Say UVANITE Mineral Image for Uvanite Mindat locations   U++++++2V+++++6O21•15(H2O) NAME ORIGIN: Named for the composition (U, Vanadium)..
Uvarovite  Say UVAROVITE Mineral Image for Uvarovite Java Crystal form for Uvarovite Mindat locations   Ca3Cr2(SiO4)3 NAME ORIGIN: Named after Count S. S. Uvarov (1765-1855), Russian statesman and ardent amateur mineral collector.
Uvite  Say UVITE Mineral Image for Uvite Mindat locations   (Ca,Na)(Mg,Fe++)3Al5Mg(BO3)3Si6O18(OH,F)4 NAME ORIGIN: Named after its locality. LOCALITY: Province Uva, Sri Lanka.
Uvite - (61.3.1.3)  (see Uvite ) See Also: GOOGLE, Athena, MinDAT, MinMax
Uytenbogaardtite  Say UYTENBOGAARDTITE Mineral Image for Uytenbogaardtite Mindat locations   Ag3AuS2 NAME ORIGIN: Named for Willem Uytenbogaardt (1918- ), Professor of Geology, Technical University, Delft, The Netherlands, prominent ore microscopist.
Uzonite  Say UZONITE Mineral Image for Uzonite Mindat locations   As4S5 NAME ORIGIN: Named for the locality. LOCALITY: Uzon caldera, Kamchatka, Russia.
  • Index A Minerals
  • Index B Minerals
  • Index C Minerals
  • Index D Minerals
  • Index E Minerals
  • Index F Minerals
  • Index G Minerals
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  • Index I Minerals
  • Index J Minerals
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  • Index N Minerals
  • Index O Minerals
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  • Index R Minerals
  • Index S Minerals
  • Index T Minerals
  • Index U Minerals
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LEGEND
Sound files Minerals identified with this icon have a sound file, courtesy of The Photo-Atlas of Minerals, which gives the pronunciation of the mineral name.
Image files Minerals identified with this icon have an image or picture in the database which may be viewed.
Java Crystal Forms Minerals identified with this icon have a Java crystal form, created with the program JCrystal, which can be manipulated and rotated.
Mindat Locations This icon links the mineral to the locality-rich information contained in Mindat.org.
Minerals identified with this icon are radioactive.
- Detectable with very sensitive instruments,
- very mild,
- weak,
- strong,
- very strong,
- dangerous.
* Mineral Name is Not IMA Approved.
! New Dana Classification Number Has Been Changed or Added.
? IMA Discredited Mineral Species Name.


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